she came across the golden gate after running all the way from new york to san francisco. it was a mission of love for her friend, til costello, who died from lung cancer in 2010. that inspired her teammates and best friend kelsey decided to run for awareness. a total of four months and almost 3,000 miles. >> once i decided that i was going to do this, i knew i would finish. >> reporter: the run averaged about 30 miles a day and kelsey went through twelve pairs of running shoes, all to shine a spotlight on cancer, through rain, sleet and cold. >> there were definitely days that were super hard. 20-degree weather. >> reporter: the run raised more than $150,000 for cancer research. kelsey said her departed friend was beside her in memory and spirit. >> we had this really intense motivation, which was her memory and doing this for jill. >> reporter: it remains to be seen what kelsey's next goal will be. but if she was inspired by jill, she's also an inspiration to others. reporting from san francisco, cbs 5. ,,,,,,,,,,,,,,,, ,, ...because the wisconsin, nebraska winner gets s